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Summary
The end user combines a (perhaps already calibrated) Sobek-CF
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schematization
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and
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a
...
(perhaps
...
already
...
calibrated)
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Modflow
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schematization.
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He
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wants
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to
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calibrate
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this
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composition.
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He
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has
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5
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observations
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available
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(water
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levels
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time
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series
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at
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3
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Sobek-CF
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locations,
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grondwater
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level
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time
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series
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at
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3
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Modflow
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locations).
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The
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parameters
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that
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have
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to
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be
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calibrated
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are:
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- the
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- Manning
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- coefficient
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- in
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- a
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- certain
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- part
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- of
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- the
...
- river
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- schematization
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- the
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- exchange
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- coefficient
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- used
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- for
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- computing
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- the
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- seepage
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- (coefficient
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- is
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- the
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- same
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- for
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- all
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- locations
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- and
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- all
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- time
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- steps).
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There
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is
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an
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algorithm
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available
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that,
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to
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do
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its
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work,
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must
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be
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able
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to
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repeatedly:
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- feed
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- a
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- new
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- value
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- for
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- each
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- parameter
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- to
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- the
...
- related
...
- model
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- ask
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- the
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- models
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- for
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- their
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- computed
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- values
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- at
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- the
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- locations
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- where
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- the
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- observations
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- are
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- available
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- compare
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- (or
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- let
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- another
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- component
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- compare)
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- the
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- computed
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- values
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- and
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- the
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- observated
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- values.
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We
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assume
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that
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both
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Sobek-CF
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and
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Modflow
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implement
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the
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IManagedState
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interface.
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How
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to
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address
...
in
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Version
...
1
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You
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have
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to
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program
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two
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classes,
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the
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calibration
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algorithm
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itself,
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and
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a
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cost
...
function.
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The
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cost
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function
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class:
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- can
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- link
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- the
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- two
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- models
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- (i.e.
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- that
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- is
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- a
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- kind
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- of
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- 'Composition'
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- class,
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- and
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- therefore
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- preferably
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- can
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- be
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- instantiated
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- from
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- an
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- *.opr
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- file)
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- can
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- access
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- the
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- required
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- parameters
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- of
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- the
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- two
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- models
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- (note
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- that
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- this
...
- class
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- has
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- to
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- be
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- a
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- ILinkableComponent
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- itself).
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- is
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- a
...
- ILinkableComponent
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- itself
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- (including
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- IManagedState),
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- so
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- that
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- another
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- ILinkableComponent
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- (the
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- algorithm)
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- can
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- interact
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- with
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- it.
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The
...
algorithm
...
class:
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- is
...
- a
...
- ILinkableComponent
...
- itself,
...
- be
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- able
...
- to
...
- interact
...
- with
...
- the
...
- cost
...
- function
...
- class
...
- ...
...
How
...
to
...
address
...
in
...
Version
...
2
...
...
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